gfortran-mingw-w64 - 8.3.0-6+21.3~deb10u2 main

MinGW-w64 provides a development and runtime environment for 32- and
64-bit (x86 and x64) Windows applications using the Windows API and
the GNU Compiler Collection (gcc).
.
This metapackage provides the Fortran compiler, supporting
cross-compiling to 32- and 64-bit MinGW-w64 targets.